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Bug#747519: bibtool: "Symbol does not start with a letter" random errors with pipe



Control: found -1 2.58+ds-1

With the following testcase

------------------------------------------------------------------------
#!/bin/sh

bibtool -V

cat > input.bib <<EOF
@article{key,
  AUTHOR = {Aa Bbbbbbbb, Ccccccc and Dddddd, Eeeeee and Fffff, Gggggg},
  TITLE = {Some title}
}
EOF

rm -f out-old.bib
while true
do
  bibtool -q -- 'select{@article}' input.bib > out-new.bib
  [ -f out-old.bib ] || cp out-new.bib out-old.bib
  cmp out-new.bib out-old.bib || break
done
------------------------------------------------------------------------

I can reproduce the bug on two of my machines with both unstable
and experimental bibtool packages:
  * Laptop with 2 cores, physical access.
  * Desktop machine with 8 cores, SSH access.

I need to wait for a few seconds up to several dozens of seconds
(in the worst case, it took up to 84 seconds on my laptop).

-- 
Vincent Lefèvre <vincent@vinc17.net> - Web: <https://www.vinc17.net/>
100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/>
Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)


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